Method of splicing together warp threads



Jan. 20.1925. Y 1,523,999

E. F. HATHAWAY METHOD OF SPLICING TOGETHER WARP THREADS Original Filed Feb. 8, 1915 5 MW? y M dit y Patented Jan. 20, 1925.

UNITED STATES EDGAR F. HATHAJHAY, OF VIELLESLEY. IJTASSACHUSETTS,

PATENT OFFICE,

ASSIGNOR- TO SHAWIVIUT MASSACHUSETTS.

METHOD OF SPLIOING TOGETHER ARP THREADS.

Refiled for abandoned application Serial No. 6,911, filed February 8, 1915.

December 20, 1921.

loom to draw in after it the other set of warps.

In carpet looms and some other looms for weaving pile fabrics, it has been the practice when the last ends of the warp threads are reached to tie to those ends the corresponding ends of a full warp beam in o *der that the old threads might be drawn through the harness eyes by the tail ends of the warp threads already located in the loom harness. This method of knotting together the two sets of warp threads not only consumes a great deal of the time of the operator but in cases where, as in carpet weaving, each warp element consists of a bundle of tuft or thick threads arranged together to form a single warp, the knot is naturally large and cumbersome and likely to cause trouble when the attempt is made to draw the knot through the eye in the harness. Furthermore, there is also lia bility to error through carelessness or inattention in tying together long ends of the two sets of warps that do not correspond.

To overcome these difficulties, I have devised a method by which the ends of the nearly exhausted warp may be effectively and quickly secured to the ends of the succeeding warp beam without forming objectionable knots in the warps, while also avoiding loss of time and liability to error in tying together the wrong threads of the two sets of warps.

The following specification describes the unethod oi procedure comprising my in vention, and it will be understood that this method. may be carried out by hand while also lending itself to more expeditious resalts by the use of any suitably designed This application filed Serial No. 523,766.

automatic or partly automatic machine that may be devised for this purpose.

In the accompanying drawings, I have illustrated various steps in the practice of my improved method of splicing together the ends of the respective warp threads, but it will be understood that the particular "form of implement shown, as well as the particular form of the clips used, are merely illustrative, and that the invention is not confined to any special form of accessory devices.

Figure 1 represents aperspective of the two warp ends securedin spacing clamps preparatory to bringing them into overlapped relationship to the guide or spacer.

Figure 2 is a similar view showing the one set of warp threads laid across the guide.

Figure 8 shows the two sets of warp threads over-lapped and with each corre- SPOllCllllg' pair of warp ends united together.

Figure at is a detail view showing a convenient form of clip- Figure 5 is a perspective showing in detail a pair of over-lapped warp ends tastened together.

Before the splicing operation is begun, each set of warp threads is secured by a spacing clamp of convenient form which, as shown in Figure l, embraces a comb-like spacing bar a with a cooperating cover or clamp member Z; of trough-like or U-shaped cross section adapted to be forced down over the ends of the comb teeth a between which are laid in regular succession the warp ends 0 of one set of warps. The other set of warp threads are held in the same relationship that they occupy on the beam by means of the similar spacing clamp ab.

The first step in the operation after the warp threads have been clamped and spaced in their predetermined order is to bring the two sets of warps together with the corresponding threads of one warp over-lapping the corresponding threads of the other warp. The certainty and quickness of this operation is facilitated by the use of a simple guide member 6 provided with guide teeth 6 arranged to be easily inserted between the individual threads of each warp or, what amounts to the same thing, one sin tire set of warp threads may at a single operation by means of its spaclng clamp be laid into the appropriate spaces between the guide teeth 6.

7 hen this is done, the other set of warp threads are similarly laid into the guide with each warp end superimposed above the corresponding -warp end oi": the

over-lapped pair of warp ends, as indicated at in Figure 5, the resiliency of the metal serving to contract it upon the threads, or

it may be in the form of a blank of soft metal or other suitable material which may be clamped-or pinched around a pair of warp ends by means of the fingers of the operator or by means of special pliers, or even, if desired, by a special machine dc signed for this purpose.

The clips or tie members will preferably be made, of small dimensions so that when pinched or pressed-into the-soft yarn they will afford no large obstruction to the easy passage of the spliced ends through the barness eyes.

It Will be observed that the practice of this process results in a new product or article of manufactureconsisting of two series of parallel threads, the ends of one series being over-lapped on the corresponding ends of other series, each pair of overlapped ends being fastened together by an external fastening clip, and this is a feature of the present invention.

What I claim is:

1. The herein described method of splicing together two sets of warp threads which consists in positioning the ends of the threads of each set in a predetermined order properly spaced apart then bringing the two sets together with the ends of one set oven lapping the corresponding ends ot the other set, andth'cn uniting the over-lapped pairs of ends by clinching around and upon each pair, an encircling fastening clip, substantially as described.

2. The herein described method of unit-- ing two sets of warp threads which consists in first brin ing together into uniformly spaced relationship the whole series of individual warp ends of the warp set and securing them in such. relation, then bringing the respective ends into overlapped relationship with the corresponding ends of a similarly held and arranged set of warp threads by means of a common receivingaml spacing element, and then clinching upon and around each overlapped pair of thread ends. an encircling fastening strip, substantially as described.

3. The herein described article of manutacture comprising two series of warp threads whose corresponding ends are overlapped upon each other, and a series of metallic fastening clips clinched around the respective pairs of over-lapped ends sub stantially as described.

It witness whereof, I have subscribed the above specification.

EDGAR F. HATHiUVAY. 

